/*! ******************************************************************************
 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2017 by Hitachi Vantara : http://www.pentaho.com
 *
 *******************************************************************************
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 ******************************************************************************/

package org.pentaho.di.trans.steps.csvinput;

public class UnnamedFieldsMapping implements FieldsMapping {

  private final int fieldsCount;

  public UnnamedFieldsMapping( int fieldsCount ) {
    this.fieldsCount = fieldsCount;
  }

  @Override
  public int fieldMetaIndex( int index ) {
    return ( index >= fieldsCount || index < 0 ) ? FieldsMapping.FIELD_DOES_NOT_EXIST : index;
  }

  @Override
  public int size() {
    return fieldsCount;
  }

  public static UnnamedFieldsMapping mapping( int fieldsCount ) {
    return new UnnamedFieldsMapping( fieldsCount );
  }

}
